Hi all,

I have freeswitch configured with standard media mode (no proxy no bypass).
When a call arrives (through external profile), FS sets ringback and sends 183 session progress.
Unfortunately the calling party (i.e. a cellular phone), hears a distorted ring sound.

With proxy mode, of course the calling party hears a correct ring sound.


What could be the reason?


Best regards,
Carlo Dimaggio